WIA GC/10207 | Warburg, Aby to Warburg, Mary 22/10/1904 | detailed account of impressions in Düsseldorf; he met Professor [Eduard] Zacharias, also Jürgens... |
WIA GC/11571 | Warburg, Aby to Mönckeberg, Carl 23/03/1912 | it has been ten years since Professor [Robert] Münzel has been appointed director of the... |
WIA GC/12094 | Warburg, Aby to Warburg, Paul 31/08/1914 | explains the political situation; compares it to 'Nibelungen Not'; on England and preparations... |
WIA GC/12190 | Warburg, Aby to Mönckeberg, Carl 20/04/1915 | forwards brochures, 'Rivista', etc.; on the political situation, on Italy as a neutral country... |
WIA GC/12338 | Warburg, Aby to Embden, Heinrich 16/07/1916 | they receive news from [Heinrich?] Embden via Fritz Bendixen; expresses passionately his... |